Jäger Z33-D080.01 S1 User manual

Manual
Z33-D080.01 S1
High Frequency Spindle
Pneumatic direct change

Item no. 10301164, Revision 012 ( 32 )
Identification of HF spindle
Spindle type
Pmax S6-60%
Item no. .... Serial no.
Rated rotation speed
Serial no.
Item no.
Power data
Spindle type
S1-100%
As we always ensure that our HF spindles are at the cutting edge of techno-
logical development, we reserve the right to make technical modifications
and variations from the exact design described in the manual.
The text in this manual has been compiled with the utmost care. However,
Nakanishi Jaeger GmbH cannot assume any legal responsibility or liability of
any kind for incorrect information and any consequences thereof.
Translations and reproductions – including of extracts – are prohibited with-
out the express written approval o Nakanishi Jaeger GmbH.

Item no. 10301164, Revision 01 3 ( 32 )
Contents:
Translation of the original manual
1 Preliminary information 4
1.1 Purpose of the manual ...................................................... 4
1.2 Explanation of symbols used .......................................... 4
2 Transport and packaging 5
2.1 Scope of supply of HF spindle ........................................ 5
2.1.1 Service set................................................................. 5
2.1.2 Optional accessories............................................. 5
2.1.3 Documentation supplied.................................... 6
2.2 Packaging of HF spindle.................................................... 6
3 Designated use 6
3.1 Permissible types of machining ..................................... 6
3.2 Permissible materials ......................................................... 6
4 Safety instructions 7
4.1 Safe working.......................................................................... 8
4.2 Shutdown of HF spindle ................................................... 9
4.3 Installation and maintenance ......................................... 9
4.4 Modification and repair..................................................... 9
4.5 Improper operation ............................................................ 9
5 Technical description 10
5.1 Connections of HF spindle.............................................10
5.2 Electrical connection........................................................10
5.3 Cooling..................................................................................11
5.3.1 Cooling via spindle holder................................11
5.4 Pneumatic tool change ...................................................11
6 Technical Specifications 12
6.1 Dimensions..........................................................................13
6.2 Technical data sheet (KL 1002, AC motor)................14
6.2.1 Performance Diagram........................................15
6.3 Wiring diagram...................................................................16
6.4 Air-borne noise emissions..............................................17
7 Operating location 17
8 Installation 18
8.1 Installing the HF spindle .................................................18
8.2 Diameter of media supply line .....................................18
8.3 Compressed air...................................................................19
8.3.1 Air purity classes (ISO 8573-1) .........................19
8.3.2 Setting values........................................................19
9 Commissioning 19
9.1 Running-in schedule ........................................................ 20
9.2 Daily start-up....................................................................... 20
9.3 Shutdown signal................................................................20
9.4 Commissioning after storage........................................ 20
10 Tool change 21
10.1 Clockwise.............................................................................. 21
10.2 Pneumatic direct change................................................21
10.2.1 Changing the collet.............................................22
10.3 Tool changing station (optional accessory).............23
10.3.1 pneumatic direct change..................................23
10.3.2 Installing the changing station....................... 23
10.3.3 Maintenance..........................................................23
11 Tools for high speed cutting 24
11.1 Broken-off tool....................................................................24
12 Maintenance 25
12.1 Ball bearings........................................................................25
12.2 Daily cleaning .....................................................................25
12.2.1 Before commencing work ................................25
12.2.2 With every tool change .....................................25
12.2.3 Every time the clamping device is changed
....................................................................................25
12.3 In the case of storage....................................................... 26
12.4 Monthly maintenance .....................................................26
12.5 Long periods of storage..................................................26
12.6 Maximum storage time................................................... 26
13 Dismantling 27
13.1 Disposal and environmental protection................... 27
14 Service and repairs 27
14.1 Service partners .................................................................27
14.2 Malfunctions........................................................................28
15 Declaration of Incorporation 31

Preliminary information
Item no. 10301164, Revision 014 ( 32 )
1 Preliminary information
The high frequency spindle (HF spindle) is a high quality precision tool for
high speed machining.
1.1 Purpose of the manual
The manual is an important component of the HF spindle.
ÜStore the manual carefully.
ÜMake the manual available to all persons who work with the HF spindle.
ÜRead the documentation supplied in full.
ÜBefore carrying out any work, read the corresponding section of the man-
ual carefully again.
1.2 Explanation of symbols used
To enable quick classification of information, this manual uses visual aids in
the form of symbols and text markings.
Notes are marked with a signal word and a colored box:
DANGER
Dangerous situation!
Results in serious injury or death.
uMeasure to avert the danger.
WARNING
Dangerous situation!
May result in serious injury or death.
uMeasure to avert the danger.
CAUTION
Dangerous situation!
May result in minor to moderate injury.
uMeasure to avert the danger.
Note
May result in material damage. This warning symbol is not a warning for per-
sonal injury.
Tip
Tips indicate useful information for users.

Transport and packaging
Item no. 10301164, Revision 01 5 ( 32 )
2 Transport and packaging
Exampleofdesign: Inserting the
shank
Note: Ensure functionality
uWhen transporting the HF spindle, always fit an appropriate shank in the
collet.
Avoid strong vibrations or impacts during transportation, as these could dam-
age the ball bearings of the HF spindle.
ÜAny damage reduces the accuracy of the HF spindle.
ÜAny damage restricts the functionality of the HF spindle.
ÜAny damage shortens the service life of the HF spindle.
2.1 Scope of supply of HF spindle
The following parts are supplied with the HF spindle:
qHigh Frequency Spindle
qCollet
qService set
qTransport packaging
ÜCheck the high frequency spindle for completeness upon delivery.
2.1.1 Service set
qCollet grease
qEjector pin
qCollet screw-in tool
qFelt cleaning taper
qCylinder brush with eyelet
2.1.2 Optional accessories
Available on request:
qSpindle holder
qFrequency converter
qFurther accessories on request.
Only approved accessories have been tested for operational safety and func-
tionality.
ÜDo not use any other accessories – this may invalidate any warranty claims
and compensation claims for damages.
ÜIf the spindle holder is to be produced in-house, it is essential to contact
Nakanishi Jaeger GmbH before starting production to request the toler-
ances and production plan for the spindle holder.

Designated use
Item no. 10301164, Revision 016 ( 32 )
2.1.3 Documentation supplied
The documents listed below are supplied with the HF spindle:
qManual
qThe declaration of incorporation is part of the manual.
qInspection protocol
ÜCheck that the documentation supplied is complete when the spindle is
delivered. If necessary, request a new copy.
2.2 Packaging of HF spindle
All transport packaging materials can be recycled in appropriate disposal facil-
ities.
3 Designated use
The HF spindle is an “incomplete machine” in accordance with the Machinery
Directive and cannot perform any function independently. The HF spindle can
only be operated in conjunction with a machine tool and a frequency con-
verter.
3.1 Permissible types of machining
The HF spindle has been developed only for the following types of machining.
qCutting
qDrilling
qEngraving
qGrinding
ÜContact Nakanishi Jaeger GmbH if other types of machining are required.
3.2 Permissible materials
The HF spindle has been developed only for the following materials.
qMetals (such as alloys, cast metals etc.)
qSintered materials
qPlastics
qWood
qGraphite
qStone (marble, etc.)
qPaper and cardboard
qCircuit boards
qGlass and ceramic
ÜContact Nakanishi Jaeger GmbH if other materials are to be machined.

Safety instructions
Item no. 10301164, Revision 01 7 ( 32 )
4 Safety instructions
The high frequency spindle is a state of the art product and is safe to operate.
However, the HF spindle may pose a risk in the following cases:
qIf it is installed by untrained personnel.
qIf it is used incorrectly.
qIf it is not used in accordance with its intended use.
The high frequency spindle may only be installed, commissioned, and main-
tained by specialist personnel.
Definition: Specialist personnel are persons who are familiar with the assem-
bly, installation, commissioning, and operation of the product and have the
relevant qualifications for their area of activity. The operator must closely con-
trol the responsibility, training, and monitoring of these personnel.
DANGER: Due to explosion.
HF spindles are not approved for use in areas at risk of explosion. Use in such
areas may result in explosions.
uDo not use the HF spindle in potentially explosive atmospheres.
DANGER: Due to flying parts.
The HF spindle operates at high speeds and may therefore be flung away by
these.
uOperate the HF spindle only if it is installed in the machine or system in a
fixed manner.
Note: Adhere to the limit values.
uObserve the limit values specified in the technical data.
Note: Take account of the machine.
uObserve the manual of the machine in which the HF spindle is installed.
uObserve all safety instructions specified by the machine manufacturer.
uEnsure that the machine does not cause any hazards (e.g. uncontrolled
movements). Do not install the HF spindle in the machine until this has
been done.
Note. Do not damage the HF spindle.
uAny damage reduces the accuracy of the HF spindle.
uAny damage restricts the functionality of the HF spindle.
uAny damage shortens the service life of the HF spindle.

Safety instructions
Item no. 10301164, Revision 018 ( 32 )
4.1 Safe working
Observe all safety instructions set out in the manual, the applicable national
accident prevention regulations, and the valid company work, operation, and
safety guidelines.
DANGER: Due to flying parts.
Tools that are not clamped correctly will be flung away by the centrifugal
forces that occur during machining.
uUse the full clamping depth of the collet.
uClamp the tool securely.
DANGER: Due to flying parts.
If the wrong rotational direction is used, the clamping system releases and
the tool is flung away.
uIt is essential to adhere to the rotational direction of the HF spindle.
WARNING: Risk of injury due to flying parts.
The HF spindle operates at high speeds which may cause chips to fly out
with great force.
uNever remove the protective devices of the machine or system.
uAlways wear protective goggles during work.
Exampleofdesign: Inserting the
shank
Note: Ensure functionality.
uNever operate the HF spindle without a clamped tool shank.
If no tool shank is clamped:
qThe clamping system is damaged by the centrifugal forces.
qThe clamping system is shifted.
qThe balance of the HF spindle is affected.
qThe bearing is damaged.
ÜTake the relevant measures to protect against splashes and spray accord-
ing to the type of machining, the type of material being machined, and the
type of tool selected.
ÄObserve the manual of the machine in which the HF spindle is installed.
ÜObtain the maximum circumferential speeds of the tools used from the
tool supplier.
Single-point tools are not suitable for high speed cutting.
If they are required for production reasons:
ÜOnly use a balanced tool.
ÄDIN ISO 1940
ÄBalance grade 2,5

Safety instructions
Item no. 10301164, Revision 01 9 ( 32 )
The tool cutting diameter (X) must not be greater than the maximum
clamping range (Y).
ÜAlways clamp the tool so that it is as short as possible.
ÜKeep the dimension (Z) small.
Ä(Y) See section: Technical Specifications [}12].
4.2 Shutdown of HF spindle
The procedure for shutting down the high frequency spindle for installation
and maintenance work is as follows:
ÜCompletely disconnect the power supply.
ÜCompletely disconnect the media supply (air and liquid).
ÜMake sure that the shaft of the HF spindle has come to an absolute stand-
still.
Tip: Forward the data to the controller.
uUse the option on the frequency converter of detecting the shutdown
signal from the shaft and forwarding this to the machine controller for
evaluation.
4.3 Installation and maintenance
ÜCarry out installation, cleaning, and maintenance work only after shutting
down the HF spindle and after the shaft has come to a standstill.
ÜInstall all safety and protective devices of the machine immediately after
completing work.
4.4 Modification and repair
Modifications or alterations to the HF spindle are only permitted after prior
consultation with Nakanishi Jaeger GmbH.
Only the service partners listed in the “Service and repair [} 27]” section are
authorized to open and repair the HF spindle.
Only approved accessories have been tested for operational safety and func-
tionality.
4.5 Improper operation
The high frequency spindle is only safe to operate for its designated use.
ÜObserve the safety instructions in all sections of the manual to prevent
hazards to persons, the environment, the machine, or the HF spindle itself.
Failure to observe the safety instructions may invalidate any warranty claims
and compensation claims for damages.

Technical description
Item no. 10301164, Revision 0110 ( 32 )
5 Technical description
5.1 Connections of HF spindle
71
1Electrical connection
7Pneumatic system for tool change G 1/8"
5.2 Electrical connection
The HF spindle may only be operated with a frequency converter (FC).
ÜCheck whether the current, voltage, and frequency data of the HF spindle
match the raw data for the frequency converter.
ÜUse a motor supply line that is as short as possible.
ÜAdjust the speed of the HF spindle using the FC.
ÜRefer to the frequency converter manual for further information.
The FC detects the following operating states of the HF spindle, depending on
the version:
qHF spindle rotating.
qHF spindle too hot.
qHF spindle at a standstill, etc.
The FC forwards the operating states of the HF spindle to the machine con-
troller.

Technical description
Item no. 10301164, Revision 01 11 ( 32 )
5.3 Cooling
The HF spindle does not feature built-in cooling. However, this means that it
has a lower power than an HF spindle with cooling.
Note: Extension of the service life through heat dissipation.
Heat is produced during operation of the HF spindle. The temperature of the
HF spindle should not exceed + 45° C as this shortens the service life of the
bearing.
uCheck the temperature of the HF spindle on the housing.
uDissipate the heat using the spindle holder.
5.3.1 Cooling via spindle holder
Exampleofdesign:
Air-cooled spindle holder
Exampleofdesign:
Liquid-cooled spindle holder
To increase the power of the HF spindle, the heat generated must be dissi-
pated via the spindle holder (optional accessory).
If the spindle holder is to be produced in-house:
ÜContact Nakanishi Jaeger GmbH.
ÜRequest the tolerances and production plan for the spindle holder.
ÜProduce the spindle holder from a thermally-conductive material (e.g. alu-
minum).
ÜObserve the dimensions of the clamping range in the Technical Specifica-
tions [}12] section. Make sure that the HF spindle is enclosed by the spin-
dle holder to the specified length.
ÜAdd cooling fins or holes (greater heat dissipation) to the external surface
of the spindle holder.
5.4 Pneumatic tool change
For guidelines on air quality,
see "Air purity classes (ISO
8573-1) [}19]" section.
The tool change or tool taper change is performed pneumatically.
During this, a mechanism is operated inside the HF spindle which clamps, re-
leases, or ejects the tool taper or collet.

Technical Specifications
Item no. 10301164, Revision 0112 ( 32 )
6 Technical Specifications
Bearings Hybrid ball bearing (pcs) 2
Lifetime lubricated maintenance free
Leistungswerte
Uncooled
Pmax./5s S6-60% S1-100%
Rated power 0,34 0,3 0,24 [kW]
Torque 0,044 0,036 0,03 [Nm]
Voltage 49 47 45 [V]
Current 6,6 6 5,3 [A]
Motordaten Motor technology 3-phase asynchronous drive
(no brushes or sensors)
Frequency 1.333 Hz
Motor poles (pairs) 1
Rated rotation speed 80.000 rpm
Acceleration/braking value
Per second
10 000 rpm
(other values by consultation)
Characteristics Housing Aluminium
Housing diameter 33 mm
Cooling Uncooled
Heat dissipation Via the spindle holder
Housing temperature < + 45° C
Ambient temperature + 10°C … + 45°C
Protection category IP43
Tool change Pneumatic direct change
Collet type 5,5P-10°
Clamping range up to 3 mm (1/8")
Clockwise
Coupler plug 3-pin
(Amphenol C 091 A)
Weight ~ 0,8 kg
Inner taper run out < 1 µ

Technical Specifications
Item no. 10301164, Revision 01 13 ( 32 )
6.1 Dimensions
(*) = Clamping range

Technical Specifications
Item no. 10301164, Revision 0114 ( 32 )
6.2 Technical data sheet (KL 1002, AC motor)
The power values (S1, S6, S2)
are valid for sinusoidal cur-
rents and voltages.
The power values of the HF
spindle are dependent on the
frequency converter used and
may vary from the indicated
values.
Motor type 1/4-2
Rated power 0,24 kW
Rated rotation speed 80.000 rpm
Cooling Uncooled
Heat dissipation via the mount
Motor temperature < 100°C
Winding resistance 1,2 Ω
Power dissipation 115 W – max. (S1)
Measured values: S1-100%
Rated rotation speed 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 rpm
Speed 6,050 15,490 25,120 35,540 45,815 55,990 95,950 75,980 rpm
Frequency 167 333 500 667 833 1,000 1,167 1,334 Hz
Rated power 0.005 0.03 0.077 0.114 0.145 0.177 0.210 0.245 kW
Torque 0.008 0.018 0.029 0.03 0.03 0.03 0.03 0.03 Nm
Voltage 4 9 16 22 28 33 39 45 V
Current 2.4 4 5.3 5.3 5.3 5.3 5.3 5.3 A
Cos φ 0.74 0.83 0.84 0.81 0.79 0.78 0.77 0.76
Measured values: S6-60%
Rated rotation speed 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 rpm
Speed 5,070 13,950 24,180 35,030 45,240 55,410 65,440 75,550 rpm
Frequency 167 333 500 667 833 1,000 1,167 1,334 Hz
Rated power 0.004 0.034 0.083 0.131 0.170 0.211 0.246 0.289 kW
Torque 0.008 0.023 0.033 0.036 0.036 0.036 0.036 0.036 Nm
Voltage 4 10 17 23 29 35 41 47 V
Current 2.5 5.0 6 6 6 6 6 6 A
Cos φ 0.74 0.85 0.85 0.82 0.8 0.8 0.78 0.77

Technical Specifications
Item no. 10301164, Revision 01 15 ( 32 )
Measured values: S2-Pmax./5 s
Rated rotation speed 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 rpm
Speed 4,950 15,430 24,240 30,130 44,890 55,110 65,300 75,020 rpm
Frequency 167 333 500 667 833 1,000 1,167 1,334 Hz
Rated power 0.004 0.029 0.088 0.131 0.196 0.238 0.282 0.343 kW
Torque 0.007 0.018 0.035 0.042 0.042 0.041 0.041 0.044 Nm
Voltage 4 10 16 23 30 37 43 49 V
Current 2 4.3 6.2 6.4 6.5 6.5 6.4 6.6 A
Cos φ 0.73 0.83 0.85 0.84 0.81 0.8 0.79 0.78
Note on operation with static frequency converters:
For operation with a frequency converter, the effective fundamental voltage
must correspond to the specified motor voltage.
The measured currents may be greater than the specified values due to the
harmonic content.
6.2.1 Performance Diagram

Technical Specifications
Item no. 10301164, Revision 0116 ( 32 )
6.3 Wiring diagram
Note: Do not change the ex-works configuration.
Any change may cause overvoltage on the electrical components (e.g. PTC,
differential magneto resistor).
g
f
e
d
c
b
a
4 5 6
1 32
a
b
c
d
e
f
g
Bl.von 1
Ü b e r s e t z u n g e n , V e r vi e l f ä l t i g u n g e n u n d d i e W e i te r g ab e a n D r i t te , a uc h n u r a u s z ug s w e is e ,
i s t o h n e s c h r i f t l i c h e G e h n e h m i g u n g d e r F a . A l f r e d J ä g e r G m b H u n t e rs a g t
Datum
Gepr.
Bearb.
Norm System Technologie
Blatt 1
1.0
Projekt Nr.:
Version Nr.:
Zeichn.Nr.:
Hr. Fischer
Alfred Jäger GmbH
Siemensstraße 8
61239 Ober Mörlen
Pinbelegung 3-pol
1
2
3
U
W
29026270
12.06.2008
0,2 mm²
0,2 mm²
0,2 mm²
(*)
(*)
(*)
Gerätestecker 3-pol.
Spindle plug male 3-pole
V
Stator
Stator
(*) grün bis 31.05.2009
(*) green up to 31.05.2009
schwarz
black
blau
blue
braun
brown
1
2
3
3
2
1
Motorphase W
Motor phase W
Kundenseite
Customer side
Motorphase U
Motor phase U
Motorphase V
Motor phase V

Operating location
Item no. 10301164, Revision 01 17 ( 32 )
6.4 Air-borne noise emissions
CAUTION: Noise has an impact on health.
uOnly operate the HF spindle if you are wearing hearing protection.
7 Operating location
DANGER: Due to flying parts.
If the HF spindle is incorrectly attached, it may come loose during operation
and be flung away by the forces that occur.
uClamp the HF spindle firmly.
WARNING: Risk of injury due to flying parts.
The HF spindle operates at high speeds which may cause chips to fly out
with great force.
uNever remove the protective devices of the machine or system.
uAlways wear protective goggles during work.
Exampleofdesign: Mounting
surface
Note the following points before installing the HF spindle:
ÜMake sure that the correct spindle holder for the HF spindle is fitted in the
machine.
ÜCheck the connecting hoses for damage.
ÜCheck the connecting cables for damage.
ÜOnly use undamaged hoses and cables.
ÜDo not allow the HF spindle to run in the vicinity of a heat source.

Installation
Item no. 10301164, Revision 0118 ( 32 )
8 Installation
Before installation:
ÜCheck the HF spindle for damage and ensure that it is complete.
If the HF spindle has been stored for a long period:
ÜCarry out all steps in the Commissioning after storage section.
8.1 Installing the HF spindle
Connect media and cables with a
flexible connection.
Complete the following steps in sequence to install the HF spindle:
ÜRemove the sealing plugs that protect the connections against damage
and contamination during transportation.
ÜInstead of these sealing plugs, install the appropriate hose fittings.
ÜInstall the corresponding hoses in the hose fittings
ÜMake sure that the connections are flexible and free of strain.
ÜSeal all connections for compressed air axially in relation to the tightening
direction.
ÜIf the HF spindle is equipped with sealing air:
ÄMake sure that no air flow can occur in the bearing area.
ÄAlways use sealed cable boxes when connecting electrical lines.
ÜMount the HF spindle on the machine.
ÜConnect the hoses to the connection of the respective media.
ÜRemove the protective cap that protects the shaft against damage and
contamination during transportation.
ÜConnect the connector of the operating connection lines to the relevant
connection of the HF spindle and to the frequency converter.
ÜLock the connectors.
8.2 Diameter of media supply line
ÜThe nominal size of the media supply lines can be found in the following
table:
DN Medium D1 D2
2.8 Compressed air 2.8 mm 7/64" 4 mm 5/32"
4Compressed air 4 mm 5/32"6 mm 15/64"
6Compressed air 6 mm 15/64"8 mm 5/16"

Commissioning
Item no. 10301164, Revision 01 19 ( 32 )
8.3 Compressed air
8.3.1 Air purity classes (ISO 8573-1)
Solid impurities Class 3
Filter grade at least 5 µm for solids
Water content Class 4
Max. pressure dew point +3 °C
Total oil content Class 3
Max. oil content 1 mg/m3
8.3.2 Setting values
For guidelines on air quality,
see "Air purity classes (ISO
8573-1) [}19]" section.
ÜKeep to the following values:
Pneumatic system for tool change ≥ 6,0 bar
9 Commissioning
DANGER: Due to flying parts.
If the speed is selected incorrectly, the HF spindle or the tool may be de-
stroyed and their fragments may be flung out.
uNote the maximum speed for the selected tool.
uNote the maximum speed for the HF spindle.
uThe maximum permissible speed of the HF spindle for commissioning /
processing is always the lowest specified speed.
Exampleofdesign: Inserting the
shank
Note: Ensure functionality.
uNever operate the HF spindle without a clamped tool shank.
If no tool shank is clamped:
qThe clamping system is damaged by the centrifugal forces.
qThe clamping system is shifted.
qThe balance of the HF spindle is affected.
qThe bearing is damaged.
Exampleofdesign: Clockwise
ÜTurn the shaft of the spindle at least ten times by hand.

Commissioning
Item no. 10301164, Revision 0120 ( 32 )
9.1 Running-in schedule
Duration of load (minutes)
Max. load (%)
ÜPut the HF spindle into operation with a clamped tool (without machining)
for approx. 10minutes.
ÜThe speed in this case should be no more than 20% of the maximum per-
missible speed for the HF spindle.
ÄSee definition: Max. permissible speed
ÜAllow the HF spindle to run for approx. 2 minutes at a maximum of 50% of
the maximum permissible speed.
ÜOperate the HF spindle for approx. 2 more minutes at a maximum of 80%
of the maximum permissible speed.
The HF spindle is now ready for operation.
9.2 Daily start-up
Proceed as follows to preheat the grease lubrication of the bearing and to
protect it:
ÜOperate the HF spindle with a clamped tool (without machining).
ÄApprox. 2minutes.
ÄAt maximum 50 % of the maximum permissible speed.
(See Commissioning [}19] section)
This brings the HF spindle to its operating temperature.
9.3 Shutdown signal
Use the option on the frequency converter of detecting the shutdown signal
from the shaft and forwarding this to the machine controller for evaluation.
9.4 Commissioning after storage
ÜDo not put the HF spindle into operation until its temperature has adjusted
from the temperature of the storage location to the temperature of the us-
age location.
ÄThe temperature difference between the HF spindle and the usage lo-
cation should not exceed 10°C.
ÜCarry out all steps in the "Maintenance [}25]" section.
ÜOperate the HF spindle at a maximum of 50 % of the max. permissible
speed for approx. 5 minutes.
ÄSee Commissioning [}19] section
ÜOperate the HF spindle for approx. 2 more minutes at a maximum of 80 %
of the maximum permissible speed.
This preheats the grease lubrication of the bearing and protects it.